Spindle-bearing



(No Model.)

G. H. ALLEN.

UNITED STATES PATENT OFFICE.

GEORGE H. ALLEN, OF AYER, ASSIGNOR TO GEORGE DRAPER & SONS, OF

HOPEDALE, MASSACHUSETTS.

SPlNDLE-BEARING.

SPECIFICATION forming part of Letters Patent No. 348,651, dated September 7, 1886.

Application filed August .22, 1832. Serial No. 69,993. (No model.)

To all whom, it may concern.-

Be it known that I, GEORGE H. ALLEN, of Ayer, county of l\'[iddlesex,and State of Massachusetts, have invented an Improvement in Spindle-Bearings, of which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to bearings for that class of spindles for spinning cotton,known as self-centering spindles, and has for its obj ect to restrain the rotation of the bolsterbearing, and is an improvement upon the invention contained in my Patent No. 262,268, to which reference may be had. In my said patcut I employed a pin or stud held in place by the side walls of the supporting'tube, and the said pin or stud was extended loosely into a hole in the bolster-tube and also into the step. The said stud or pin restrained the bolstertube from rotation with the spindle, but permitted it to move laterally toward the inner wall of the supporting-tube in substantially any direction radially. Vith the said pin and stud so held and applied to the support- 2 5 ing-tube and bolster, as described in the said patent, considerable trouble is experienced when removing the bolster-tube, as is occasionally necessary.

The object of this my present invention is to 0 provide a simple, cheap, and efficient device which may be easily applied to the supporting-tube to engage and hold the bolster-tube from rotation, yet permit the said bolster-tube to move freely therein as the spindle moves to 5 find its true center of rotation.

My invention consists, essentially, in a supporting;tube and a bolster-tube holding-plate provided with one or more pins or prongs combined with a bolster-tube notched at its 40 lower end and placed loosely in the said supportingtube, the prongs of the holding-plate engaging the notches of the said bolster-tube and restraining it from rotation therein, as will be hereinafter described, and claimed at 4 5 the end of this specification.

Figure 1 represents in partial vertical sectiona sufficientportion of asleeve-whirl spindle, supportingtube, and step with my improved bolster-tube holding-plate added to enable my invention to be understood. Fig.

2 is a side elevation of the bolster-tube and step removed; Fig. 3, a section of Fig. 2 on the dotted line Fig. 4 shows one of my improved bolster-tube holding-plates in broken side elevation; Fig. 5, a top view thereof; Figs. 6 and 7 like views of a modification thereof, having a greater number of holdingstuds.

The supporting-tube a, fixed to the rail 1) by the nut 0, receives within it loosely the bol- 6c ster-tube d, which is somewhat smaller in diameter externally than the internal diameter of the opening in the supporting tube, so'that the said bolster-tube is free to move radially or laterally in the said supporting-tube and in the oil with which it is filled in any direction as the spindle moves laterally to find its true center of rotation, the bolster-tube when in central position not touching the vertical inner walls of the supporting-tube by cushion- 7o ing itself 011 the oil in the latter. The step 6, upon which the lower end of the spindle f rests, it having, as herein shown, a sleeve-whirl, h, is shown as driven or fitted snugly into the lower end of the bolster-tube,with its conical lowcr end just below the lower end of the bolstertube. The lower end of the bolster-tube will beprovided with one or more notches, 3, two notches being shown in Figs. 1 to 3,which will receive one. or more prongs, 2, rising from a 8n holding plate or disk, g, driven or forced into the opening or oil-well formed in the support ing-tube,the said disk or plate being restrained from rotation in the said supporting tube.

The prong 2, entering a notch, 3, is both narf rower and thinner than the said notch, so that the said bolster-tube is free to move laterally in any direction for a certain limited yet sufficient distance in the said supporting-tube to enable the bolster-tube and spindle in it to 0 move for a proper distance for the spindle to find its true center of rotation.

It is obvious that the holding disk or plate may have one or more prongs and yet operate in substantially the same manner. In Figs. 6 5 and 7 I have shown a disk with four prongs, 2. The spindle will be kept down properly when doffing the bobbins by means of a turnhook, m.

The holding-disks may be formed by swag- 10o ing in a press, and will be forced firmly in its In testimony whereof Ihave signed my name 10 proper place in the supporting-tube. to this specification in the presence of two snb I claim scribing witnesses. The supporting-tube,and bolster-tube hold- 5 ing-plate located therein, provided with one GEORGE H. ALLEN.

or more prongs eoinbined with the bolster-tube,

placed loosely in the said supporting-tube and \Vitnesses:

notched to engage the said prongs, to operate 7 G. V. GREGORY, substantially as and for the purposes described. BERNIOE J. NoYEs. 

